1323.81% is the change from 21 to 299
Calculation steps:
[( 299 - 21 ) ÷ 21] x 100 = 1323.81%
Formula
Percentage change = [(299 - 21) / 21] x 100
Subtract the new number by the original number
299 - 21 = 278
278 ÷ 21 = 13.238095238095237
13.238095238095237 x 100 = 1323.81%